*{margin:0px}
#contain{width:1500px; height:750px; width:100%; background-image:url(imgs/zyt2.jpg);margin-left:auto;margin-right:auto}
#head{width: 1500;height:100px}
.header_top{width:1500px; height:50px;text-align:center;float:left;margin-top:40px;font-size:40px;font-family:"宋体";color:black}
.fengexian1{width:1535px; height:6px;background-color: silver;margin-top:5px;float: left;}
#body{width:1500px; height:400px;float:left}
.yuan1{width:300px; height:300px;float:left;border-radius: 50%;background-color: lightskyblue;margin-left: 60px;margin-top: 80px}
.yuanzi{width:150px; height:150px;float:left;text-align:center;font-family: "宋体";font-size: 24px;margin-top: 100px;margin-left: 50px;}
.yuan2{width:250px; height:250px;float:left;border-radius: 50%;background-color: lightgrey;margin-left: 25px;margin-top: 25px}
#bottom{width:1500px; height:250px;float:left}
.yuan3{width:150px; height:150px;float:left;border-radius: 50%;background-color: palegoldenrod;margin-left: 270px;margin-top: 30px}
.yuanzi2{width:150px; height:150px;float:left;text-align:center;font-family: "宋体";font-size: 24px;margin-top: 60px;margin-left:8px;}
